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(No Model.) 2 sheets-sheet 1. R. B. GGODYEAR.

SHEDDING MEGHNISM FOR LOOMS.-

110.481,346. Patented July 1,1891).

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BV.. B. GOODYEAR. A

SHBDDING MBGHANISM FOR LooMs.-

No. 431,346. Patented July 1, 1890.

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'me Nom-us persas co., F nnnnnnnnnnnnnnnnnnnnnn u c UNITED STATES PATENT OFFICE.

ROBERT B. GOODYEAR, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO JACOB HOFFMAN, OF SAME PLACE.

SHEDDING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 431,346, dated July 1, 1890. Application ma ramry ze, 1890. serai No. 341,860. (No mada.)

To all whom t may concern:

Be it known that I, ROBERT B. GOODYEAR, a citizen ot the United States, and a resident of Philadelphia, in the county of Philadelphia and State ot Pennsylvania, have invented certain new and useful Improvements in Shedding Mechanisms for Looms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such xo as will enable others skilled in the art to which it appertains to make and use the same. My invention relates to improvements in shedding mechanisms for looms; and the object of my invention is to improve the means x 5 for shifting the heddles with a view to promoting simplicity of construction and to lock or confine the heddle-lever in place' when the heddle is in either a raised or lowered position.

tzo My invention consists in the combination ot devices and peculiar construction, arrangeyment, and adaptation of parts, as will be herein after fully described, and particularly pointed out in the claims.

z 5 In the accompanying drawings I have only shown as much of a loom-frame and heddle as will enable others skilled in the art to understand the same, in which drawings# Figure 1 is a side elevation showing a part 3o of a heddle, a loom-frame, and my improved means for operating the heddle, the heddlelever ,being shown in its lowered position.

Fig 2 is a detail view, partly in section, showing the heddle-lever in its raised position 3 5 and resting lirmly in a seat ofthe fixed abutment and in contact with the movable abutment. Fig. 3 is an end view illustrating a series of heddle-levers, the means for operating the same, the pattern-cylinder, and the oper- 4o ating mechanism for the latter.V Fig. 4 is a detail View, on anenlarged scale, of the operating mechanism for the pattern-cylinder. Fig. 5 is a detail view of a part of the frame for the shedding mechanism.

Like numerals of reference denote corresponding parts in all the figures of the drawings.l

The numeral l designates a part of a frame of aloom, 2 the crank-shaft, 3 a heddle, and

5o 4 an endwise-movable or reciprocating jack,

all of which parts are common to the ordinary loom and do not require more detailed description in this specification.

5 designates one of the side pieces of a frame in which the shedding mechanism is supported, which frame is composed of two corresponding pieces similar to the piece 5, which trarne-pieces project outward from the loom-frame, as indicated in Fig. 1. In the lower part of the frame-piece 5, I provide two 6o vertical parallel slots 6 6 and in these slots are arranged reciprocating lifter and depressor bars 7 7. To one of these bars is connected a link 8, which link is connected to and oper ated by the crank-shaft 2, and said vertically- 6 5 movable litter and depressor bars are carried by vertical slides 9 9,.Which are iitted in suitable guides on the frame-piece 5, said slides being connected for simultaneous operation by links 11 11 to an oscillating lever 7o 12, which is fulcrumed at its middle.

No novelty is claimed in the devices just described, as they are common features in looms; but I will now proceed to describe my improvements more specifically. 7 5' 15 designates the heddleAlever of my improved shedding meehanism for looms, which lever is capable of an endwise movement within certain limits, as well as a turning or oscillating movement. The heddle-lever is 8o arranged in an upright inclined position, and the said lever is guided between the abutments, which will be presently described, and the guide-posts 16 17, which are arranged parallel with each other, but out of line ver* tically, as shown in Fig. 1, and fixed to the side piece 5 of the supporting-trame. The lever is arranged in contact with the guide-post so as to slide freely between the same, and at the same time itis capable of turning or rock- 9o ing a limited distance in order t0 turn from the approximately horizontal raised position of Fig. 2 to the more rupright position shown in Fig. 1, and the said lever is prevented from lateral displacement by the iixed plate or strip 18, which is fitted on and secured to the guideposts. (See Figsl and 2.) The lower end or heel 19 of the heddle-lever is enlarged and rounded, and to the center of this rounded heel is connected the upper end of the vern roo tically-movable jack 4L by means of a pivotbolt 19', the said heddle-lever being capable of turning or rocking a limited distance on the said bolt or f ulcru m as said lever ismoved up or down by the jack and elevator-slides in shifting the heddle. The enlarged rounded end of the heddle-lever plays between the two abutments 2O 2l, one of which 2O is fixed or rigid with the frame-piece 5, While the other abutment 2l is movable laterally for a limited distance toward and from the fixed abutment 20 in order to permit the enlarged end of the heddle-lever to clear the seats in the fixed abutment and move in a vertical direction between said abutments. The fixed abutment 2O is provided in its lateral face adjacent to the heddle-lever with the seats 20' 20", to receive a part or segment of the rounded heel of the said heddle-lever, said seats being situated at the upper and lower ends of the fixed abutment. .The movable abutment is situated at one side of the fixed abutment, substantially parallel with the same, and at a sufficient distance from the fixed abutment toy permit the heel of the heddle-lever to fit snugly between said abutments when said lever is lowered. The movable abutment is pivoted at its lower end to the frame-piece 5, as at 22, and it has a lateral arm 23, to which is connected a coiled retracting-sprin g 24.,

which operates to hold the movable abutment normally in contact with said heddle-lever when said lever is either raised or lowered, the abutment being movable laterally of the heddle-lever when the heel of the lever impinges against the abutment. The movable abutment 2l is thus controlled by its'spring, and at its lower end it has a seat 2l', against which the, heel of the heddle-lever impinges when said lever is lowered.

The upper end of the heddle-lever is provided with two apertures 25 25', and through one of rthese apertures 25 is passed and secured a cord 26, which runs over a guidepulley 26 and is connected to the upper side of the heddle 3. Through the other aperture 25' is passed and secured another heddle-cord 27, which runs over the upper guide-pulley 27' and the two lower guide-pulleys 2S, situated below the heddle and pulley 27', as shown,

and the said cord 27 ,is then connected to the lower side of the heddle (SeeFig. l.) The heddle-cords are drawn taut between the heddle and heddle-lever, and said cords hold the heel of the lever l5 firmly against one or the other of the seats of the fixed abutment, so that the said lever is locked or con-fined in place. Thus when the heddle is raised the heddle-lever is lowered, as indicated in Fig. l, and its hub is in contact with the seats 2l' and 20" of the movable andfixed abutments, and as the heddle-lever is'pulled by the heddlecord 26 it is obvious that the heel of the heddle-lever is forced firmly against the seat 20" of the fixed abutment and the seat 21' of the movable abutment and the heddle-lever is prevented from movement. Then the heddle is lowered, the heddle-lever is raised to the posit-ion indicated in Fig. 2, the post 17 serving as the fulcrum on which the lever turns, and the heel of said lever bears on the seat 20' of the fixed abutment, and as the cord 27 pulls on the upper end of the heddlelever the heel of the said lever is forced into the seat 20 of said abutment by the strain or pull of the heddle-cord 2G, as is obvious.

' 30 designates the pattern-cylinder, which is carried by ashaft 3l, suitably journaled in the frame-piece 5, and this cylinder has rows of perforations 32 formed in its surface to receive the pins 33, which pins act to lift the weighted end of a lever 35, or a series of such levers. (See Fig. 3.) The lever 35 is fulcrumed on a pin or shaft 3G, iiXed in the frame-piece 5, and said lever has a depending curved arm 36', the free end of which arm has a guide or loop 37, which loop receives the vertically-movable jack, which jack is free to slide in the loop, whereby the lever 35 is operated by the pattern-cylinder, and it serves to shift the lever at the desired intervals, so that its arm 36' moves the jack on the bolt 19' in position to be engaged by the lifter-bar or depressor-bar or slide, for the purpose well known in this art. On the other end of the shaft 3l a ratchet-wheel 37 is fixed, and on this end of the shaft is loosely fitted a bell-crank lever 3S, one arm of which carries a gravity-pawl 39, and to the other arm of which is connected apitman 40,which leads to the operating-lever l2, whereby thelever l2 operates the bell-crank lever through the pitman to cause the gravity-pawl to engage the ratchetwheel at regular intervals, and t-hus rotate the pattern-cylinder at cach oscillation of the lever l2 and each movement of the bars 7 7',

which are operated by the crank-shaft.

The operation of my invention may be briefiy stated, as follows: As the crank-shaft rotates, the lifter and depressor bars are raised and lowered alternately, and the lever l2 operates the pawl 39 to rotate the patterncylinder, so that the weighted lever 35 is moved by the pins of the pattern-cylinder at suitable intervals to shift the jack, so that the notches or shoulders of the latter are engaged by the bars at the desired intervals, and the heddle-lever is raised or loweredto move the heddle. As the heddle-lever is raised the movable abutment yields laterally to the enlarged heel of the said lever and permits the lever to turn as it is raised, and thus assume the position shown in Fig. 2,in which position the heel of the lever is forced into the seat 20' of the fixed abutment and locked or confined in place by the strain of the cords and the contact of the heel of the heddle-lever with the seat 20 of the fixed abutment. When the lever is drawn down, it slides through the guide-posts andy between the abutments, the post 17 serving as the ful'crum on which the lever turns and the movable abutment yielding to permit thek enlarged heel to pass the same and to rest firmlyin the IOO IIO

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seat 2l of the movable abutment and the seat of the fixed abutment, in which position the lever is locked or confined. in place by the pull or strain of the heddle-cords on said heddle-lever.

Although l have described my invention as adapted for use in connection with a single heddle-lever, it is obvious that a series of such levers can be provided and used in connection with the iixed and movable abutments and the pattern-cylinder, which heddie-levers are arranged between the guideposts and separated from each other by the plates 1S.

Changes in the form and proportion of parts and details of construction can be made without departing from the spirit or sacrificing the advantages of my invention, and I therefore reserve the right to make such modifications as fairly fall within thc scope of my invention.

Having thus fully described my invention,

what l claim as new, and desire to secure by Letters Patent, is-

l. The combination, with a heddle, of an endwise-movable rocking heddle-lever connected by intermediate cords with the heddle, a jack pivoted to the heddle-lever, means for operating the jack, and the abutments between which the heddle-lever slides, the abutments having the seats to receive the heel of the heddle-lever when in its elevated and depressed positions, substantially as described.

2. The combination, with a lieddle, of an endwise-movable rocking heddle-lever connected by intermediate cords with the heddle, the guide-posts arranged on opposite sides of the heddle-lever, a jack pivoted to the heddlelever, means for operating said jack, and the abutments provided with the seats, substantially as specified, for receiving the heel of the heddle-lever, substantially as described.

3. The combination, with a heddle, a jack,

and means for operating the jack, of an endwise-movable heddle-lever pivoted to the j ack and connected to the heddle by intermediate cords, a fixed abutment arranged laterally of the heddle-lever and having the seats to receive one end of said lever in its raised and lowered positions, and a movable abutment arranged on the other side of said heddle-lever, to move laterally of the same for a limited distance and likewise having a seat for the heddle-lever, substantially as described.

et. The combination, with a heddle, a jack, and mechanism for operating the jack, of an endwise-movable heddle-lever having its enlarged heel pivoted to the jack and connected to the heddle by intermediate cords, the fixed guide-posts between which the heddle-lever is fitted, a fixed abutment having the seats for the enlarged heel of the heddlelever, and a movable spring-pressed abutment arranged on the other side of the heddie-lever and also having a seat, substantially as described.

5. The combination of the lifter and depressor bars, the slide-bars secured to the lifter and depressor bars, an oscillating centrally-pivoted lever linked to the slide-bars, a pattern-cylinder carried by a shaft having a ratchet-wheel, a bell-crank lever fitted on the pattern-cylinder shaft and linked to the oscillating lever and carrying a gravity-pawl, a heddle-lever, a jack, and a weighted lever 35, having a depending arm which is connected to the` jack by a loop or guide in which the jack is free to move vertically, substantially as described.

In testimony whereof I ailix my signature in presence of two witnesses.

RoB'r. B. GOODYEAR.

Witnesses:

E. HOWARD BURKE, THEO. H. M CCALLA. 

